#include <STC15F2K60S2.H>


void system_int ()
{
	P0 = 0XFF;
	P2 = P2&0X1F  | 0X80;
	P2 &=0X1F;

	P0 = 0X00;
	P2 = P2&0X1F  | 0XA0;
	P2 &=0X1F;




}